The end of the year is traditionally a time for making predictions, so what better time to talk about technologies that will change printing? Most of the technologies covered here already exist in at least some printers, but they deserve to be widely copi

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3-D printers, also called rapid prototypers, are already being used, for example, by dentists to build crowns while a patient waits in the office and by architects to build models of their designs. As prices continue to drop, the applications should widen